19 Results
This application note describes the measurement challenges of 5G NR and makes clear the benefits of using a monitoring receiver for measuring 5G signals.
07-Jun-2021 | AN-No. 1SL366
Measuring absolute power levels precisely and accurately in over-the-air (OTA) scenarios is challenging. The R&S®NRPM-A90(D) OTA power sensors remove many uncertainties by design and give a definite specification for the remaining ones.
25-Feb-2020
Inside the lab and on the production line – this Rohde & Schwarz solution offers speed, accuracy and convenience for testing TX beamforming passive array antennas.
04-May-2018
With its small footprint, the R&S®ATS1000 antenna test system is the ideal direct far-field OTA system to test phased array antennas.
12-Mar-2020
The document gives an overview and user guide about a link budget calculator for the main components of a basic OTA system. Accomopanied by an Excel sheet containing the Link Budget Calculator.
19-Mar-2019 | AN-No. 1EF104
This application note explains how to perform LTE base station measurements over the air (OTA) using the R&S®FSH4/8/13/20 handheld spectrum analyzer.
12-Sep-2013 | AN-No. 1EF87
Calibration and Verification Solution
The UWB (Ultra-Wideband) technology is a short range wide-band radio technology specified for device to device communication operating in unlicensed spectrum. It is an RF positioning technology that enables accurate and secure peer-to-peer ranging between mobile devices with robust resistance to interference while consuming very low energy and coexisting well with other radio communication systems. UWB is used for a variety of different applications, such as asset tracking, secure payment, personal tracker, real time location services and keyless access and start of a vehicle etc. According to ABI Research forecasts, there will be well over 1 billion UWB annual device shipments by 2026. Almost every smart phone shipped in 2026 will support UWB services.Talking about testing aspect of a UWB device, in general two test methodologies can be adopted as other wireless products, either the traditional testing mode (so-called conducted test mode) with wired RF connection between the test measurement equipment and device under test (DUT) or over the air (OTA) test mode in an OTA anechoic chamber. Sometimes, it is not always possible or necessary to perform the tests under conducted mode due to the limiting factors, e.g. cost, space, complexity and direct access to the RF connectors of the product. In this case, OTA testing is then becoming a non-evitable approach. Moreover, OTA testing reflects the usage of DUT in a real condition.In this application note, R&S® OTA test solution covering transmitter (Tx), receiver (Rx) and Time of Flight (ToF) testing in Wireless Automated Testing (WMT) environment is described. The measurement results throughout the whole document are based on NXP Trimension™ NCJ29D5 UWB automotive IC.
12-Apr-2023 | AN-No. 1SL394
This application note contains theoretical background on OTA power and pattern measurements in the context of 5G and beam steering.
29-Aug-2017 | AN-No. 1GP118
The amendment 802.11ad to the WLAN standard defines the MAC and PHY layers for very high throughput (VHT) in the 60 GHz range. This application note provides a brief examination of key 802.11ad parameters, describes the required measurements and test setups and contains several important recommendations for over-the-air (OTA) measurements.
17-May-2017 | AN-No. 1MA260
LTE user equipment (UE) receiver performance has significant impact to cellular radio network coverage and capacity. It determines the maximum data throughput across the air interface between the LTE base station (eNB, evolved node B) and the mobile network subscriber UE, thus it determines the total capacity across the air interface. Therefore, it is one of the most important measurements to verify the actual receiver performance of individual devices, and a key metric to compare different devices, in particular.This paper shall give an introduction to receiver performance measurements and discusses the measurement metrics as well as the challenges of over the air (OTA) measurements.
31-Aug-2017 | AN-No. 1ST001
radiated conformance testing according to TS 38.141-2, Rel. 16
3GPP defines the Radio Frequency (RF) conformance test methods and requirements for 5G NR Base Stations (BS) in the technical specifications TS 38.141.
30-Jun-2020 | AN-No. GFM325
radiated conformance testing according to TS 38.141-2, Rel. 16
This application note describes all mandatory radiated RF transmitter tests (TS 38.141-2, chapter 6), according to Release 16.
20-Dec-2019 | AN-No. GFM324
This white paper provides an overview of test solutions addressing current and future requirements for antenna verification.
11-Nov-2016 | AN-No. 1MA286
Comprehensive test solutions guide for production and R&D
Small cell is a compact base station with smaller form factor and lower transmission power in comparison to the conventional macro base station. It covers relatively small area and serves less users. Usually, small cell can be integrated into the existing mobile network. By the evolution of radio access technology, the role of small cell has been changing through the evolution path. In the 2G/3G time, its role was to provide coverage in corner cases. Later during LTE, networks are not just providing coverage but capacity too. Small cells were then used to provide the addition capacity where required without adding additional spectrum. Now in 5G era, network operators use densification as an important strategy to provide seamless 5G services which demand coverage, capacity and performance too. With use cases requiring the 5G millimeter wave (mmW) rollouts, it makes sense to use small cells for densification due to the propagation characteristics of mmW.In this application note, we will shed light on the testing aspects of a small cell throughout the product life cycle with particular focus on the production test solution for the small cell device under test (DUT) in FR2 (frequency range 2, mmW frequency band) in Over the Air (OTA) environment for option 6 split based on radio communication tester R&S®CMP200 and OTA chamber R&S®CMQ200. The document is complemented with more insights into test solutions used in typical R&D test applications towards the second half of the application note.
19-Jun-2023 | AN-No. 1SL395
This application note describes how to measure the antenna pattern of a mm-Wave device in the R&S®ATS1000 shielded chamber. This includes the required calibration of the measurement setup and a possible near field to far field transformation when measuring larger devices.
28-May-2018 | AN-No. 1MA304
This document describes Bluetooth Low Energy RF over-the-air RX and TX measurements using advertising channels for communication with Bluetooth Low Energy devices.
14-Dec-2020 | AN-No. 1C109
Joint solutions of R&S® and COMPRION®
This application note describes the eUICC compliance and remote eUICC provisioning test solution based on R&S® CMW500/CMW290 and COMPRION® eUICC Profile Manager software tool.
03-Jun-2020 | AN-No. GFM342
This white paper introduces the fundamental theory behind beamforming antennas, calculation methods and measurement results for linear arrays.
15-Sep-2016 | AN-No. 1MA276
This document describes the unique application of Rohde & Schwarz VNA to fully characterize the passive part of multi-element antennas.
20-Mar-2017 | AN-No. 1MA278